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1
Which of the following statements is/are true about microbes or microorganisms?
A)The terms microbes and microorganisms can be used synonymously with the term bacteria.
B)Microbes are typically aquatic or found in very moist environments.
C)Microbes are easily seen swimming in water.
D)All of the above.
2
The two kinds of organisms that are prokaryotic (lack a nucleus) are
A)Bacteria and Archaea.
B)Bacteria and protozoa.
C)Archaea and algae.
D)Algae and protozoa.
3
Which of the following activities can be attributed to bacteria?
A)Bacteria produce the enzymes necessary for a cow to metabolize cellulose.
B)Bacteria are used to digest organic wastes and the methane produced can be used as a source of fuel.
C)Bacteria have a symbiotic relationship with the roots of many plants and in the process provide the plants with usable forms of nitrogen.
D)All of the above.
4
Which of the following statements is/are true about Archaea?
A)A majority of the known Archaea are pathogenic.
B)Many kinds of Archaea live in extreme environments.
C)Archaea only live in the ocean.
D)All of the above.
5
When considering the kingdom Protista, it is important to remember that
A)the autotrophic unicellular organisms are algae.
B)the heterotrophic unicellular organisms are protozoa.
C)slime molds are considered to be fungus-like protists.
D)All of the above.
6
Which of the following statements about algae is/are true?
A)All algae have a cellulose cell wall.
B)Many algae are part of the phytoplankton.
C)Many algae are large multicellular organisms.
D)All of the above.
7
Which of the following statements about algae is/are true?
A)A massive increase in algal population is known as a bloom.
B)Some species of dinoflagellates are toxic.
C)Multicellular algae are commonly known as seaweed.
D)All of the above.
8
Which of the following statements about protozoa is/are true?
A)Protozoa are heterotrophs.
B)Protozoa have a cell wall.
C)Certain amoebas are responsible for the termite's ability to digest wood.
D)All of the above.
9
Which of the following taxonomic categories of organisms does NOT have members that do photosynthesis?
A)Domain Bacteria
B)Domain Archaea
C)Kingdom Protista
D)Kingdom Fungi
10
Which of the following taxonomic categories of organisms is important as decomposers?
A)Domain Bacteria
B)Domain Archaea
C)Kingdom Fungi
D)All of the above.
11
Which of the following taxonomic category is a major cause of disease in plants?
A)Domain Archaea
B)Kingdom Protista
C)Domain Bacteria
D)Kingdom Fungi
12
Fungi having a symbiotic relationship with plant roots are known as
A)Mycotoxins.
B)Mycorrhizae.
C)Saprophytes.
D)None of the above.
13
Apicomplexa
A)are parasites on rye and other grains.
B)are a common part of the plankton.
C)are photosynthetic.
D)have complex life cycles.
14
When considering lichens, it is important to remember that
A)a lichen is a symbiotic relationship between a fungus and an alga.
B)lichens only live in humid regions.
C)lichens are rarely seen in nature.
D)All of the above.
15
Archaea differ from Bacteria in that
A)Bacteria have peptidoglycan in their cell walls and Archaea do not.
B)Archaea are larger than Bacteria.
C)Archaea reproduce sexually and Bacteria do not.
D)Archaea produce spores and Bacteria do not.
16
A saprophyte is an organism that
A)lives on the sap of trees.
B)lives on the outside of living organisms.
C)lives on dead organic matter.
D)lives in the intestine of termites.
17
Which of the following is an example of a mutualistic relationship?
A)lichen
B)mycorrhiza
C)the rumen of a cow
D)All of the above are correct.
18
Which of the following is important in photosynthesis in the ocean?
A)cyanobacteria
B)diatoms
C)dinoflagellates
D)All of the above are correct.
19
The vector of malaria is
A)a ciliated protozoan.
B)the mosquito, Anopheles
C)a Sporozoan.
D)the common housefly.
20
Biologists consider the ancestors of fungi, plants, and animals to be
A)members of the Archaea.
B)members of the Bacteria.
C)colonial members of the Protista.
D)None of the above.
21
Corn smut, fairy rings, and toadstools are all
A)fungi.
B)algae.
C)bacteria.
D)protozoa.
22
Protista differ from Prokaryotae in that Protista
A)are unicellular.
B)can be autotrophs or heterotrophs.
C)contain DNA.
D)are composed of eukaryotic cells.
23
Pathogenic bacteria cause
A)malaria and amoebic dysentery.
B)ringworm and athlete's foot.
C)strep throat, syphilis, and pneumonia.
D)All of the above.
24
Which of the following involves a mutualistic relationship?
A)lichen
B)mycorrhizae
C)corals and dinoflagellates
D)All of the above.
25
Which one of the following is a member of the kingdom Protista?
A)slime mold
B)yeast
C)moss
D)cyanobacteria
26
Small organisms which float and move with water currents are
A)endospores.
B)benthic.
C)plankton.
D)colonial.
27
Heterotrophic organisms can be found in the Responses
A)Domain Bacteria
B)Kingdom Protista
C)Kingdom Fungi
D)All of the above.
28
Mushrooms reproduce and are dispersed by
A)flagellated cells.
B)asexual spores.
C)sexual spores.
D)both sexual and asexual spores.
29
_________ produced by mushrooms are poisonous and/or hallucinogenic to humans.
A)Antibiotics
B)Alcohols
C)Mycorrhizae
D)Mycotoxins





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